Where does “bespeaketh” come from?

bespeaketh (English) comes from English bespeak, from Middle English bespeken, from Old English bespecan, from Proto-Germanic bisprekaną — to speak about, discuss, blame; to discuss, blame.

Ancestry of “bespeaketh”, step by step

bespeaketh traces back through two separate lines of ancestry.

via English bespeak

StepLanguageWordMeaning
1EnglishbespeakTo speak about; tell of; relate; discuss; To...
2Middle Englishbespeken
3Old Englishbespecan
4Proto-Germanicbisprekanąto speak about, discuss, blame; to discuss, blame

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Proto-Germanic bisprekanąEvery word from Old English bespecanEvery word from Middle English bespeken